NestJS · Senior · Question 67 of 75

How do you limit the impact of a slow downstream service on a Nest API's thread of execution?

1Increase the Node.js thread pool to 1000
✓Correct answer: Bound concurrent calls per dependency (bulkhead), add timeouts, and return cached or degraded data when possible
3Make every call synchronous

Explanation

Without limits, waiting calls accumulate memory and sockets until the whole service degrades.

Further reading

Test yourself

Take the NestJS · Senior quiz: questions and options are shuffled, and you get a review of your mistakes at the end.